feat: add elasticsearch monitoring db

[afzal442]

Added elasticsearch monitoring dashboard

/claim #6010

[afzal442]

hi @makeavish could you review it as to what we had a discussion on slack?

[makeavish]

• Make sure use correct Units for each panel
• Check if dashboard variable is added to WHERE clause
• Use IN operator if multiple values of variable is possible
• Use = operator if only single value is possible
• Read through metrics and aggregations doc: https://signoz.io/docs/metrics-management/types-and-aggregation/
• Panel description should be present
• Use LEGEND if needed